Traceback (most recent call last)
<ipython-input-8-aea1750fc455> in <module>()
----> 1 dateutil.parser.parse('Nan')

~/.virtualenvs/backend/lib/python3.6/site-packages/dateutil/parser/_parser.py in parse(timestr, parserinfo, **kwargs)
   1310         return parser(parserinfo).parse(timestr, **kwargs)
   1311     else:
-> 1312         return DEFAULTPARSER.parse(timestr, **kwargs)
   1313
   1314

~/.virtualenvs/backend/lib/python3.6/site-packages/dateutil/parser/_parser.py in parse(self, timestr, default, ignoretz, tzinfos, **kwargs)
    602                                                       second=0, microsecond=0)
    603
--> 604         res, skipped_tokens = self._parse(timestr, **kwargs)
    605
    606         if res is None:

~/.virtualenvs/backend/lib/python3.6/site-packages/dateutil/parser/_parser.py in _parse(self, timestr, dayfirst, yearfirst, fuzzy, fuzzy_with_tokens)
    699                 if value is not None:
    700                     # Numeric token
--> 701                     i = self._parse_numeric_token(l, i, info, ymd, res, fuzzy)
    702
    703                 # Check weekday

~/.virtualenvs/backend/lib/python3.6/site-packages/dateutil/parser/_parser.py in _parse_numeric_token(self, tokens, idx, info, ymd, res, fuzzy)
    948             else:
    949                 # Year, month or day
--> 950                 ymd.append(value)
    951             idx += 1
    952

~/.virtualenvs/backend/lib/python3.6/site-packages/dateutil/parser/_parser.py in append(self, val, label)
    428                     raise ValueError(label)
    429                 label = 'Y'
--> 430         elif val > 100:
    431             self.century_specified = True
    432             if label not in [None, 'Y']:  # pragma: no cover

InvalidOperation: [<class 'decimal.InvalidOperation'>]